William dent priestman and samuel priestman



' (No Model.)

, W. D. in S. PRIESTMAN. METHOD 0E WORKING HYDEOGARBURETED AIR ENGINES.

N0. 397,51'7. Patented Peb. 12, 1889.

- -mHrF lNVENTORS:

WITNESSESI NJPETERS. Pholo-Litnngnphnr. waminghm. p c.

UNTTED STATES 4PATENT Tirion.

lVILLlAhl DENT PRIES'PMAN ANI) SAMUEL PRIESTMAN, OF HULL, COUNTY OF YORK, ENGLAND.

lVlETHOD OF WORKING HYDROCARBURETED=A|R ENGlNES.

SPECIFICATION forming partl of Letters Patent No. 397,517, dated February 12, 18819.

Original application filed July 20, 1887, Serial No. 244,802. Divided and this application tiled March 9,1888. Serial No. 266,689. lNo model.) Patented in England December 21, 1886, No. 16,779 in Germany June 8, 1887, No. 48,273; in France June 25, 1887,No.184,486; in Belgium June 28,1887, No. 77,995; in Sweden July G, 1887, No. 1,886; in Italy July 7,1887,No. 421; in Cape Colony July 12, 1887; in Victoria July 19, 1887, No. 5,188; in Queensland July 22, 1887, No. 298; in New Zealand July 27, 1887, No. 2,449; in South Australia July 29, 1887, No. 848; in New South Wales August 2, 1887 No. 37; in Canada August 4, 1887, NoA 44,986; in India August 15, 1887, No. 140; in Tasmania September 22, 1887, No. 492; in Brazil September29, 1887, No. 504; in Spain November 15, 1887, No. 7,187; in Austria-Hungary December 3, 1887, No. 24,081 and No. 56,741 i in Argentine Republic January 4, 1888, No. 684,' in Norway March 7, 1888, No, 695, and in Portugal To all whom it may concern:

13e itk nown that we, W ILLTAM DENT Pnl nsr- MAN and SAMUEL lniusrniw, both subjects ol' the Queen ot' Great Britain, and residents ot' Ilolderness lfoululry, l'lull, in the county ot' lYork, England, have invented certain lne provements in Methods ot' (,ontrolling the Aetion ot' llydroearboIi-Engines, (for which we have been grzlnted Letters Patent in Great Britain Decrmiber 21, 188e, No. 10,779; in Aust1'iz'i.-ll'11ngary .'Deeember 2l, 1887, Nos. 2l-,081. and 515,711; in flfranee J une 25, 1887, No. 184,486; in Spain November I5, 1887,No.' 7,1 87; in VBelgium .lune 28, 1887, No. 77,995; in Norway Mareh 7,1888,No. i305; in Sweden July l5, 1887, No. 1,3811; in Italy .l uly 7, 1887,No. l 5 in Cape Colony July 12, 1887, Reg. Folio A101 in Canada, application filed August; 4, 1887, No. 44,9311, in Victoria July 19,1887, No. 5,188; in Portugal March 8, 1888,No.1,228; in Germany .l'u ne 8, 1887, No. '1 8; in Tasmania September 22, 1887, No. 192; in Queensland July 22, 1887, No. 298; in South Australia July 251, i887, No. 818; in New South `lYaless August 2, i887, No. 87; in New Zealand .luly 27, 1887, No. 2,419; in Brazil September 251i, 1887, No. :3o-t; in Argentine Republic .lannary 1, 1888, No. (iii-t, and in India August l5, 1887, No. 110,) olf which the following is a spceilir'fation.

This invent ion relates to a method ol' operating hydroearbon-engines, whereby the supplementary air-eharge, which is mixed with the hydrocarbureted-ai r charge, is varied in volume proportionately to the latter, in order that the working` charge of explosible `gases may be attenuated without being diluted with adisproportionate (putntityol air. 'lhismay be accomplished by any suitalfile means. We have shown in the accompanying drawings the mechanism `l'or this purpose illustrated and claimed in our pending application, Scral No. 214,802, of which this application is a division. i

The drawings are merely employed herein 45 for illustrative purposes.

lfigure l ol the accompanying drawings is a longitudinal sectional view ot' the vaporizer and valve nieehanisni of a liydrocarbon-eni gine adapted li'or suliplying the fluids and 5o liquids in proportioiiatily-regulated quantin ties. Figs. 2 and 5,3 represent cross-sections of the plug-valve, and are designed to illus trate the peculiar ilorm ol' ports therein.

For the better umlerstanding of our method 55 oli' controlling the l'eed olj fluids and liquids to the vaporizer, we will l'irst explain the construction and operation ot' the device illustrated in the drawings.

In a sui table val ve-easn g is mounted a plug- 6o valve, e, on the stem ot' which secured an operating-arm, ax, which is i-.onnected to the governor of' the engine. (Notshown.) Through this medium the govm'nor is made to control the valves. In the valve ov are two ports, I) 65 and bx. (Seen, respectively, in Figs. 2 and 8.) These ports coincide with and form parts, respectively, olil the air-passage c and hydrocarbon pz'tssage eX. Each olf these passages is pro vided with a lilleriiig-chamber, d, packed with 7o Cotton, wool, or other suitable filtering material, whieh strains the-tl nids on their way to the mixing-*nozzle e. This nozzle, which we need not more particularly describe here, breaks the liquid liydroearbon (arriving by 7 5 passage rx) up into a tine spray and mixes it with the air, (arriving by wayT o1 passage c.) This mixture lorms the hydroearbureted-air charge. The forni otl the ports (j }X,whereb v the rotation oli the plug by the governor 8c gradually lessons the areas ot' the respective passages, is clearly illustrated in Fi s, 2 and 2l, and will require no further description.

'.llie spindle ol the val ve o is prolonged, and on this pri'i'longation a is secured a butterfly 85 or throttle valve, g, arranged to work within and to regulate the effective area of a passage,

c', through which the supplementary air-sup.n

ply is admitted to the Vapor-chamber. This supplementary air-supply is led from the pas: sage o into an annular' Chamber, h, surrounding' the inixingmozzle e, 't' rom which Chamber it escapes into the vapor-chamber A on all sides through numerous perforations, h. \Vhen the engine is running, any augmelita/tion oli' its speed Causes the governor to aeton the valves d and g simultaneously, and thus to attenuate the inflammable charge drawn into the engin ecylinder from the Vapor-chamber, sueh attenuation being' of course proportioned to the speed the engine has attained above the normal speed. The poteney of the inllamnnible Charge is thus regulated at all times lo suit the varying requirements of the work to be performed. As the su p plemenlary ai r-snppl y is diminish ed and augmented proportionately to the supply ol hydroearbureted air, the Workingv charge is thus attenuated properly without being; diluted. In this attenuation without dilution ol the working' Charge oonsists the essential` :feature ol" our method ol' controlling this (dass of engines.

That We claim as our invention, and desire to secure by Letters Patent, is-

The herein-described method of controlling the action of a motor-engine operated by the combustion of intlannnable charges Composed of air permeated with liquid hydrocarbon and mixed with an additional quantity of air, substantially as described, said method consisting,r in autom atieally and sim ultaneously regulating the aforesaid three separate streams anterior to the vaporizing of the liquid hydroearbon, whereby the resulting tri-part Working Charge is, when necessary, attenuated without being' diluted with a disproportionate quantity of air.

1WILLIAM DENT PRESTMAN. SAM UBL PRESTMAN.

Vitnesses:

J'. W. COUSIN, W. Il'. OWENS, Clerks' with lll'essrs. Prieshmm Bros., FILLE. 

